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CGP EDU Academic Team
Published on: August 14, 2026
If ' ' is the length of median from the vertex A to the side BC of a Δ ABC, then
Text Solution
Verified by ExpertsThe correct answer is:
B
= 
∴ 4 2 = 2b 2 + 2c 2 – a 2
= a 2 + 2(b 2 + c 2 – a 2 )
= a 2 + 2(2bc cos A)
4 2 = a 2 + 4bc cos A
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